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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 1. |  HEF4557BP | 1-to-64 bit variable length shift register | NXP Semiconductors | PHILIPS | - | - | - | 86 Kb |
| 2. | HEF4555B | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 41 Kb |
| 3. | HEF4555BD | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 41 Kb |
| 4. | HEF4555BDB | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 41 Kb |
| 5. | HEF4555BF | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 41 Kb |
| 6. | HEF4555BN | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 41 Kb |
| 7. | HEF4555BP | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 41 Kb |
| 8. | HEF4555BPB | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 41 Kb |
| 9. | HEF4555BT | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 41 Kb |
| 10. | HEF4556B | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 43 Kb |
| 11. | HEF4556BD | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 43 Kb |
| 12. | HEF4556BDB | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 43 Kb |
| 13. | HEF4556BF | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 43 Kb |
| 14. | HEF4556BN | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 43 Kb |
| 15. | HEF4556BP | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 43 Kb |
| 16. | HEF4556BPB | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 43 Kb |
| 17. | HEF4556BT | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 43 Kb |
| 18. | HEF4556BU | Dual 1-of-4 decoder/demultiplexer | NXP Semiconductors | PHILIPS | - | - | - | 43 Kb |
| 19. | HEF4557B | 1-to-64 bit variable length shift register | NXP Semiconductors | PHILIPS | - | - | - | 86 Kb |
| 20. | HEF4557BD | 1-to-64 bit variable length shift register | NXP Semiconductors | PHILIPS | - | - | - | 86 Kb |
| 21. | HEF4557BDB | 1-to-64 bit variable length shift register | NXP Semiconductors | PHILIPS | - | - | - | 86 Kb |
